© 2012-2013 Jonas Gessner

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Setup

1. Add the JGProgressView folder to your Xcode Project.

2. Add the QuartzCore framework to your project.

3. #import "JGProgressView.h".

Basic Usage

JGProgressView is used like a normal UIProgressView with the addition of a few properties:

BOOL indeterminate

Property for the indeterminate setting, default is NO, set to YES to start the indeterminate animation.

UIImage *animationImage

Use this property to set a custom image to use for the indeterminate animation. Set this to nil to use the standard image for the current UIProgressViewStyle.

NSTimeInterval animationSpeed

Adjust the speed of the animation. The higher the value is, the slower the animation becomes. The default value is 0.5, negative values will invert the animation direction.

beginUpdates

endUpdates

Use begin- and endUpdates to increase performance when changing multiple properties of JGProgressView.

BOOL useSharedProperties

Defaults to NO. Set to YES to use shared image, animation speed and progress view style. This may help increasing performance when using many progress views with the same properties (ex. in a UITableViewCell).

If useSharedImages is YES. Setting animationImage and animationSpeed or calling beginUpdateand endUpdateshas no effects. Instead use the following methods to change the visuals of all JGProgressViews that have useSharedProperties set to YES.

+ (void)setSharedProgressViewAnimationSpeed:(NSTimeInterval)speed;
+ (void)setSharedProgressViewImage:(UIImage *)img;
+ (void)setSharedProgressViewStyle:(UIProgressViewStyle)style;

+ (void)beginUpdatingSharedProgressViews;
+ (void)endUpdatingSharedProgressViews;

Demo

JGProgressView *progressView = [[JGProgressView alloc] initWithFrame:CGRectMake(100, 100, 200, 11)];

progressView.animationSpeed = 1.5;

[self.view addSubview:progressView];

progressView.indeterminate = YES;

Important note if your project doesn't use ARC: you must add the -fobjc-arc compiler flag to JGProgressView.m in Target Settings > Build Phases > Compile Sources.

Credits

Created by Jonas Gessner.

License

JGProgressView is available under the Python 2.0 license.